Differential Diagnoses: causes of prolonged QTc intervals with long ST segments

ECG Weekly Workout with Dr. Amal Mattu

A 48-year-old male is brought in after being found unresponsive on the street. History is otherwise limited. The patient is afebrile and mildly bradycardic with a normal blood pressure. The following ECG is obtained:

Before watching the video, look closely at this ECG and ask yourself:

  1. What ECG abnormalities are present?
  2. What is your differential for the QT interval & T wave abnormalities seen?
  3. What is the most likely diagnosis?